Finding the Fourth Proportional to 521,344.68, 719,455.32 and 282,880.68
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Solution
The fourth proportional to 521,344.68, 719,455.32 and 282,880.68 is: 390,375.15
Step by Step Solution
- Step 1: Write the proportion equation
521,344.68 : 719,455.32 = 282,880.68 : x - Step 2: Convert to fraction form
521,344.68/719,455.32 = 282,880.68/x - Step 3: Cross multiply
521,344.68x = 719,455.32 × 282,880.68 - Step 4: Simplify right side
521,344.68x = 203,520,010,151.22 - Step 5: Solve for x
x = 203,520,010,151.22/521,344.68 - Step 6: Final answer
x = 390,375.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.